Tread belt pattern



FIG. 1 is a perspective view of a tread belt pattern showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top plan view of the tread belt pattern in use. 

The ornamental design for tread belt pattern, as shown. 